.header-box {
    .logo-big {
        z-index: 100;
    }

    .nav {
        z-index: 100;

        li {
            a {
                color: #000;
            }
        }
    }
}

.banner {
    background: #f9f9f9;
    position: relative;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1200px;
    height: 475px;
    overflow: hidden;
    box-shadow: 0 0 2px 2px rgba(0, 0, 0, .6);

    ul {
        position: absolute;
        bottom: 0;
        overflow: hidden;

        li {
            float: left;
            width: 1200px;

            img {
                width: 100%;
            }
        }
    }

    ol {
        width: 70px;
        height: 20px;
        position: absolute;
        bottom: 10px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        justify-content: space-evenly;
        align-items: center;
        border-radius: 10px;
        opacity: .8;

        li {
            width: 10px;
            height: 10px;
            border: 1px solid #fff;
            border-radius: 50%;
            float: left;
        }

        .current {
            background: #fff;
        }
    }

    .bayit {
        position: absolute;
        bottom: 100px;
        left: 50%;
        transform: translateX(-50%);
        opacity: .6;
    }

    .btn {
        width: 100%;
        height: 30px;
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        z-index: 100;

        .left,
        .right {
            text-decoration: none;
            color: #fff;
            background: rgba(200, 200, 200, .6);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            line-height: 40px;
            text-align: center;
            font-size: 20px;
        }

        .left {
            float: left;
            margin-left: 50px;
        }

        .right {
            float: right;
            margin-right: 50px;
        }
    }
}



.bayit:hover {
    opacity: 1;
    bottom: 95px;
}

.logo-big:hover .big-one {
    display: none;
}

.nav li:hover a {
    color: #fff;
}

.banner .btn .left:hover {
    width: 50px;
    height: 50px;
    background: rgba(200, 200, 200, 1);
    line-height: 50px;
    text-align: center;
    font-size: 30px;
}

.banner .btn .right:hover {
    width: 50px;
    height: 50px;
    background: rgba(200, 200, 200, 1);
    line-height: 50px;
    text-align: center;
    font-size: 30px;
}